Harvey b



2 sheets-sheet 1.

H. R. WOLFE.

FEED MECHANISM FOR SAW MILL GARRIAGES.

(No ModeL) t- \W Y w l Patentedg'. 11, 1885.

11755! [5P2 ipazgsZ (No Model.) 2 Sheets-Sheet 2.

I H. R. WOLFE.

FEED MECHANISM FOR SAW MILL GARRIAGES.

No. 324,059. Patented Aug. 11, 1885.

NITED STATES HARVEY R. OLFE, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO BRENNAN 85 00. SOUTH YVESTERN AGRICULTURAL WORKS, OF SAME PLACE.

FEED MECHANISM FOR. SAW-MILL CARRIAGE S.

SPECIFICATION forming part of Letters Patent No. 324,059, dated August 11, 1885. Application filed April 18, 1885. (No model.) I I which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part ofthis speci fication.

My invention relates to improvements in rircular-saw mills, and has for its object the production of novel feedin g and backin g mech anism for the carriage, whereby the efficacy of the machine is increased and its construction simplified.

The novelty will be herein set forth, and

specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of so much of the upper part of the frame as is necessary to show the application of my improved feeding and backing mechanism. Fig. 2 is a plan view of the machine, with the feeding-carriage removed.

The same letters of reference are used to indicate identical parts in all the figures.

A is the usual or any suitable frame-work of a circular saw mill. B is the saw-arbor, suitably journaled therein and driven by the pulley 0; andD isthe counter-shaft carry ing a pinion, E, by which the carriage is propelled to or from the saw. The under side of the carriage is provided with a rack meshing with the pinion E in the usual manner.

The saw-arbor is provided with alongitudi- .nal feather, a, over which is fitted a sliding hub, F, carrying a disk, G, and provided with a circumferential groove, in which is fitted a split sleeve, b, the arrangement being such that while the hub and disk can slide freely upon the arbor they still revolve therewith. The split sleeve 1) does not revolve, but has connected to it one end of a toggle, 0, whose opposite end is pivoted, as at d, to thejonrnalbox of the saw-arbor, as shown, and whose elbow has pivoted to it the end of a rod, H, that extends to the front of the machine, and is connected to the upturned arm e of a rockshaft, 1, provided with an operating-lever, J, through means of which the toggle can be operated to slide the disk G. Suitably journal ed in bracket-boxes K L M, properly secured to upon its rear end a bevel-pinion, Q, which meshes with a larger gear-wheel, 1t, keyed or otherwise fastened to the shaft 1). Upon the shaft 0, between the bracket-boxes L M, is a paper roller or pulley, S, smaller than the roller P, and which is secured to the'shaft O by a feather or key, so that it can slide in or out toward or from the center of the disk G. This roller S has a circumferentially-grooved hub, f, in the groove of which is fitted either a split sleeve or the forked ends g of a rod, T, which extends back and is connected to the lower end of alock-lever, U, pivoted as at h, and engaging by means of a pin, 1', with a perforated segment, V, as seen in Fig. 1, so that by vibrating said lever U the roller S may be adjusted to the point desired and locked by means of the pin a being passed through the lever and one end of the perforations iu the segment, as will be readily understood.

The lower end of the shaft 0 is provided with a small pinion, j, which meshes with an intermediate pinion, Ic, upon aspindle projecting from the bracket K, and which latter pinion meshes with a small pinion, 1, upon the shaft N, thereby connecting said shaft with the shaft 0. The shaft 0 is the feed-driving shaft, and the shaft N the carriage-retracting shaft, and when the machine is started the disk G occupies a position between the rollers S and P without being in contact with either, The log being secured to the carriage, the sawyer adjusts the roller S to the positiondesired to give the requisite feed, and then slides the disk Gr into contact with the roller S, whereby motion is imparted to the carriage through the pinionsj, k, l, and Q, shaft D, and pinion E. At the end of the out thedisk Gris shifted to bear against the roller 1?, whereby a reverse revolution is imparted to the shaft D and the carriage is quickly retracted. By means of the disk Gr, sliding freely upon the saw-arbor, no end-pressure is given the same, and all trembling of the saw is consequently prevented.

Having thus fully I claim- 1. In a saw-mill, the combination, with the described my invention,

carriage-propelling shaft, of two shafts geared therewith and provided with rollers, and adisk mounted and free to slide upon the'saw-arbor between said rollers with connecting and operating mechanism, whereby upon bringing said disk into contact with one of said rollers the carriage is fed forward, and upon bringing said disk into contact with the other of said rollers the carriage is retracted, substantially as described.

2. The combination, with the disk G, free to slide upon the sawarbor, of the rollers P S, mounted upon shafts N O and connected by gearing with the feed-shaft D, substantially as described, the latter of which rollers, S, is l adjustable in or out upon the surface of the disk (2-, as and for the purpose specified.

3. The combination of the shaft D, bevelwheel R, mounted thereon, the shafts N 0, carrying at one end the pinionsj l, meshing with the intermediate pinion, 7c, and the bevelpinion, (9,, meshing with the bevel-wheel 1%, the rollers l S, mounted upon the other ends of said shafts N O, the latter of which rollers is ad ust-able on its shaft, the intermediate disk, G, and mechanism for causing said disk to slide on the saw-arbor to cause its engagement with either of the rollers S or P, substantially as described.

A. GERNLEIN, Jr. J. H. DREXLER. 

